Concrete structure



5 Sheets-Sheet led Sept. 3

W. KLEITZ CONCRETE STRUCTURE nal F' Orig INVETOR #949m BY 25A/ ATTORNEY/ sept. 27, 1932.

Sept. 27, 1932. w. KLElTz i1,879,319

CONCRETE STRUCTURE Original FiLed Sept. 5. 1927 3 Sheeis-Sheet 2 FM gg Z1 y 4 5 i *i Y 10 .Il I `\1Z i 15 I* T i 20 2l E 1 .VJ :NJ

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` INVENTOR ATTORNEYS www w. KLExTz Sept. 27, 1932.

CONCRETE STRUCTURE :5 sheets-sheet 5 Original Filed Sept. 5, 1927 AlNVENTZQR #b/fvg BY ATTORNEY Patented Sept. 27, 1932 UNITED STATES PATENT oFFlcE i j WILLIAM KLErrz, or ALBANY, NEWYORK colvemzzrn STRUCTURE onginai application mea september s, 1927, serial No. 217,323. Divided and.

December 9, 1930.

. This invention relates to concrete moulding apparatus and more particularly to apparatus for the moulding of poured concrete walls', floors, partitions land other like structures.

ii This application is divisional with respect to my co-pending application Ser. No. 217 323 for Concrete Moulding Apparatus, filed Sept. 3, 1927.

An object of the inventionis to provide S moulding apparatus designedl to enable the pouring of hollow or double concrete walls, floors, partitions and other like structures.'`

According to the invention, use is made of moulds'spaced apart and rigidly held in such En spaced relation until the concrete poured in the moulds has become suiiiciently hardened to permit the removal thereof. Use is made in the invention of permanent spacin'gand reinforcing members and also of covered TED bracing members applied after the moulds have been removed. x

Other features and objects of the inventionv will become apparent by reference to the fol lowing detailed description read in the light of the accompanying drawings, wherein Figure 1 is a view in verticalsection illustrating an embodiment of the invention;

, Fig. 2 is a similar view of the same structure with the moulding apparatus removed,

and with the spacing and insulating members inplace; l p Y Fig. 3 is a top planvlew of the structure illustrated in Fig. 1;

Fig. 4 is an enlarged fragmentary section F85 taken on the lines 4-4 of Fig. 3 with'the modified arrangement of the invention, and

Fig. 10 is a sectional elevation taken on the lines 101O of Fig. 9.

this application nled Serial No. 501,015

r In carrying out the invention, use is made offa plurality of plates 10 whichmay be of sheet metal ofthe desired thickness,'length and breadth. As before stated,the inven-` tion is especially applicable tothe formationV of walls,..ioors, partitions and other like structures', but, for the sake of brevity, such structures are hereinafter termed walls, and it is to ybe understood that the usel ofsuch term in the specification and claimsis not to vibe considered a limitation ofthe inven tion. On one side of each of the plates 10 is secured a plate 11 which may be either a corrugated plate or any vother. deformed plate, but,1for`the purposes of illustration, such platesv are herein illustrated as corrugated. Theseplates may be secured to the plates 10 in any desired manner such as by spot welding or by any other suitable means.

yIn the practice of the invention, use is made ofl aplurality of spacing and reinforcy ing yokes 12 preferably corrugated as shown and having flanged ends 13 and an opening 14 as illustrated. se'is'also made of a num? ber of rings 15 and a plurality of sleeves 16.

Rings 1 5 and sleeves 16 are so constructed as i to permit contractionradially whereby Vthey may be removed from the hardened concrete at the proper timeY during the process ofwall formation` For this purpose, the edges of each of these members overlap and the inner edge of each lis bent back upon itself to provide a recess for the reception of a suitable f tool for contracting the member. `A number of Z-bars 17 and angle bars or walesV 18 or other'suitable support are'utilized in the invention in the manner to be hereinafter eX- plained in detail. f L

Having described the component parts utilized in carrying out my invention, the operation and use of the same vis as follows. A number of the plates 10 having the corru-y gated backing 11 are placed in position .as indicated in Figs. land 3. In order that the plates between which the concrete is :to be poured may be spacedl apart, the yokes 12 are so positioned that the flanges 13 `thereof rest against one ofthe plates 10.l At'the same time, the sleeves or collars 16 are so posijtionedfas toeXtend throughthe openings14 sponding yoke.

i osite the alate against which the flanges 13 rest. A suitable bolt 2O passing through an opening in one of the wales 18 and having its head resting thereagainst passes through openings in the plates and 11in such a manner as to be completely encircled by the* collar 16. The opposite end of bolt 20 passes@- through a similar wale 18 and a nut 21 is employed 'for securely holding thevarious parts in their correct position.

Since it is desired that the walls to be formed shall have a space therebetween, use is made ofthe Z-bars 17 having a number' of openings 22 spaced at intervals along one of the flanges thereof. Such bars are spaced between the inner plates 11 in such a manner that the openings 22 rest over the bolt'20 to lpermit the fiat portion of the Z-bar to seat on the bolt. l/Vhen adjusted as shown in the drawings, these Z-bars serve to space the respective pairs of plates from each other.

Having tightened the nut 21 to the'extent necessary to hold all of the parts firmly, concrete 75 may be poured into thespace between the respective plates 10. Aftertheconcrete has become sufliciently hardened, it is desirable that the plates be removed for further use. To accomplish this, advantage is taken of the deformed or corrugated .plates 11 which are spaced apart by the bars 17. Due

" to these corrugations, a suitable tool may be utilized for dislodging the bars 17 as illustrated in Fig. 1 to permit their removal. Any desired tool may be used for this pur pose, the only requirements being that the tool be so shaped, as topass between one of the flanges of the Z-bar and a depression in the corrugated plate 11. Y i

Having removed Z-bars 17,1 the bolts 20 are withdrawn, permitting the lremoval of plates 10 with their accompanying plates 11. Since both the rings 15 and the sleeves 16 are capable of beingcontracted radially, a suitable tool may be utilized for contracting these members and Afor causing their removal from theV concrete. It should be noted vat this point, however, that the yokes 12 remain embedded in the hardened concrete. The removal of rings 15 and sleeves 16 leave openings in the concrete which may be used for the reception of a bolt for permanent-ly holding the walls in spaced relation. As shown in Fig. 27 the head of the bolt 25 rests againstone of the yokes 12 while the nut 26 on the other end thereof rests against a corre- In order that the two sections of concrete may be permanently held int spaced relation andv further in order to providea more perfect insulation, use is made of the following arrangement. Before the permanent bolts 25 are'placed in position a Levasle number of continuous spacing strips extending from top to bottom of the structure and'of any desired width and thickness are placed in position. The strips are preferably of width substantially equal to the head of yoke 12and for convenience are pro-vided before insertion Abetween the concrete sections with holes for the passage therethrough of bolts 25. Between the respective spacing strips are placed boards 51 of any desiredV composition, such being well known to the art, having their edges joined together in any suitable manner to provide a continuous dividing wall of extent equal to that of the concrete walls. These boards for tliesake of convenience may also be provided before installation with holes for the passage of bolts 25@ For thepurpose of providing a continuous air' passage between the respective layer of composition boards a portion of each of the spacing strips 50 is cut away as indicated at'52. The air passage so produced serves to better insulate the structure than has been found to be true with an arrangement consisting ofa number of separate air chambers., After the bolt 25 has been placedin position, the remainder of the opening fui'- nished by the withdrawal of rings 15may be filled with concrete to preserve the continuity of surface of the wall.

In the event it is found undesirable to make use of permanent bolts the embodiment illustrated in Figs. 9 and 10 may be used especially for light structures. This' arrangement is composed of flat plates 10 and deformed plates 11 as in the structure previously described. In this structure parts corresponding to those hereinbefore de-y scribed are given the same reference characters with the laddition of la prime to each numeral. Instead of the bolts 20, use is made of relatively thin metallic tie bars provided with a number of holes for the reception of pins. In order that the sections of forms 10 with their deformed plates 11A may be connected together each edge ofthe deformed plates 11 is bent as indicated at 61 whereby a spline 62 may be inserted between the bent portion 61 and plate 10. Splines 62 are of the same length as the plates 10 and are provided with upset p0rtions 63 of thickness equal to that of `plates 10. Ihe splines and their upsets arerecessed at intervals to accommodate the tie bars 60, such recesses extending inwardly from one edge thereof to such a distance that the recesses in the upsets are of depth approxi-y mately equal to the thickness of the tie bars.

Before the forms are assembled for use it has been found advisable to insert pins 641 and 65 in holes extending through the tie bars. Referring now to Fig. 10 the upper pairs of 'forms 10 are first placedV inthe vertical position. The bars 60 are then spaced along the edge of the forms and positioned l by splines 62 and their upsets 63.

17 are placed as shown to properly space the by slipping the spline 62 under the shoulders 61 in such a manner that the tie bars are seated in the recesses in both the splines and the upsets thereon. It will be noted by reference to this that theV edges of the upper forms and 11 rest substantially against the tie bars 60. The lower form 10 may then be positioned and held in place by permitting the previously free edges of the splines to slide under the shoulders 61 of these forms until tlie edges of forms 10 closely approach the edges of upsets 63. Thus the openings between the edges of the forms 10 is clsed Z- ars pairs of forms while wales 18 having apertures therein are placed against the outer forms 11 and held in place by pins 66. Concrete may then be poured into the forms and permitted to harden suiiiciently for the removal of the forms. After the forms have been removed the protruding portions of the tie bars may be broken oi, such procedure being facilitated by previously scoring or otherwise weakening the bar at the points indicated by dotted lines 67. If so desired rality of spacing strips extending vertically from top to bottom at intervals between the sections and continuous strips of insulating material between the respectivev spacing strips, said spacing strips each having a number of portions of reduced width to pel'- mit air circulation and means for-connecting the respective sections together.

4. The combination with a plurality of Jformed concrete sections having a metal part embedded therein of means for spacing said sections comprising a plurality of spacing strips and metal joining means for connecting the respective sections together having a portion thereof resting against said metal part embedded as aforesaid in said concrete sections, to anchor said concrete sections in juxtaposed relation to said spacing strips. In testimony whereof, I have signed my name to this specification. j

WILLIAM KLEITZ.

the pins 64 may be removed and the open- Y ings left thereby filled with concrete to preserve the continuity of surface of the walls. Since the tie bars remain in the' concrete and are prevented from being withdrawn in either direction by pins 65, they serve to hold the walls properly permanently spaced. IfV

itis desired suitable insulating material may w be inserted between the walls in any desired manner.

It is to be understood that the present invention is not to be limited by the illustrated embodiments but is to be limited only to suchstructures and arrangements as are defined by the following claims.

I claim:

l. The combination with Va plurality of formed concrete sections of means for spacing said sections comprising a plurality of spacing strips extending vertically from top to bottom at intervals between said sections, said spacing strips each having a number of portions of reduced width to permit air circulation7 and means for connecting the respective sections together.

2. The combination with a plurality of formed concrete sections of means for spacing and insulating the space between said sections comprising a plurality of spacing strips extending vertically from top to bottom at intervals between the sections and continuous strips of insulating material between the respective spacing strips s and means for connecting the respective sections together.

3. The combination with a plurality of formed concrete sections of means for spacing the sections yand for forming insulating air passages therebetween comprising a plu- 

